*{
    margin:0; padding:0;
}
html,body{
    width: 100%;height: 100%;
}

body{
    background: url("../images/bg.gif");
    background-size: 100% 100%;
    background-position: center center;
    overflow: auto;
}
#box{
    width: 370px;
    height: 400px;
    border: 1px solid #E2E3E5;
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -185px;
    margin-top: -200px;
}
#logo{
    width: 370px;
    height: 95px;
    font-size: 30px;
    color: black;
    line-height: 95px;
    margin-left: 40px;
}
#user{
    width: 295px;
    height: 50px;
    margin-left: 40px;
}
#pass{
    width: 295px;
    height: 50px;
    margin-left: 40px;
}
.input-group{
    margin-left: 40px;
}
#img-submit {
    width: 95px;
    height: 30px;
    margin-top: 15px;
    border-radius: 2px;
    cursor: pointer;
    position: absolute;
    z-index: 3;
    left: 10px;
    top: 0;
}
#validateCode {
    /* 缩进 */
    /*text-indent: 6em;*/
    height: 55px;
    padding-left: 120px;
    width: 295px;
}
#btn-login{
    width: 295px;
    height: 50px;
    margin-left: 40px;
    margin-top: 20px;
}
#remember{
    width: 80px;
    height: 20px;
    margin-left: 50px;
    margin-top: 20px;
    color: #676A6C;
    font-size: 15px;
}